Question

what are useful protozoa​

Answer 1

Explanation:

Protozoa play an important role in mineralizing nutrients, making them available for use by plants and other soil organisms. Protozoa (and nematodes) have a lower concentration of nitrogen in their cells than the bacteria they eat. ... Another role that protozoa play is in regulating bacteria populations.

Answer 2

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Protozoa play an important role in mineralizing nutrients, making them available for use by plants and other soil organisms.